Saab Key ProgrammingSaab cars manufactured since 1994 come with an immobilizer system built on coded keys. A new transponder is required to allow the inclusion of an additional key, as well as special programming. This is usually done by the dealer using a Tech2 diagnostic tool.The issue is that this can be quite costly. This is the reason why you should always keep a spare key in your possession.Transponder keyThe transponder can be described as a key that is equipped with an electronic chip. The chip transmits a signal when the key is put in the ignition. The car is able to check whether the signal matches with the one on the key. If both signals match it will open itself and begin. This is a great way to stop auto theft and keep your vehicle safe from thieves.Transponder keys are a common feature in automobiles, but you must be aware that they aren't as secure as classic metal keys. The metal component of a traditional key can easily be cut and copied, however the transponder is protected by an electronic chip that guards it. This chip contains an unique code which is programmed into a car's computer order to identify it.When a Saab key fob is used the car recognizes it and allows it to turn on. However, it can only do so if the key fob is equipped with a chip that is not modified that has been programmed to match. The car won't start when the key isn't programmed to match.It is vital to have a spare Saab key. This is especially true especially if you reside in a rural region where there are a lot of car thieves. The good news is that it's possible to find a replacement key to your Saab without needing to visit an auto dealer and pay the high prices that they demand. In the majority of instances, you can get a new key made on-the-spot for less than half the cost of what you would pay at an auto dealer.Wired keySaab cars are usually supplied with two keys. If you only have one, it's an ideal idea to purchase an additional key fob as soon as is possible in case you lose it, your car will require the replacement of a CIM unit and the locking cylinders need to be replaced. This can be costly, especially if you are buying a used car. saab ignition key replacement is to connect the wires for columns and rows to your microcontroller. This is the most challenging part of the project and will require a good deal of soldering. There is no standardized way to do this, but it's important to plan out the route you'll take and solder the columns and rows. There are 22 microcontroller wires and pins that you can connect to this keyboard. It includes 5 rows and 17 column.After the columns and rows are soldered, it's the time to connect them to key switches. Solder a diode on each key switch pin. This will shield the pins of the key switch from current and also prevent them from being shorted. The diode will only allow current to flow in one direction, and has a an indicator of black color that indicates the direction in which current will flow.A few of the tools that are available at auto parts storeslike the Autel MaxiIM IM608 Pro and IM508 -- can assist customers at the shop or DIY customers in some cases program replacement keys and restore lost immobilizer data Sanabria says. The tools plug into OBD ports and guide the customer through each step, making the process easier than replacing the car's computer.Jumpstarting the batteryThe majority of people have a set of jumper cables in their trunks for emergency situations, but jumping a battery in newer automobiles might not be the best option. These vehicles have many digital and computer systems that communicate with each other. A voltage surge while the battery is connected to another could cause damage to these components, rendering your vehicle undriveable.Connect the cables to the vehicle that is working. Allow it to run for two minutes. Attach the red clip to the positive terminal on the battery that is good (it will have "POS" or "+" on it). Attach the other end to a clear, unpainted metal surface under the hood of your disabled vehicle. The engine block is a great alternative. Do not connect the black cable to the negative terminal of the dead battery because it could ignite an ignition spark that ignites the gasoline in the engine bay.After the cables have been connected, you need to start the car and allow it to run for around five minutes. Then disconnect the cables in reverse. The battery in the Saab 9-3 will charge while you drive. It will take a while for it to recharge again. You should consider purchasing an additional key fob as soon as you can. Replacing the only one that works requires the installation and programming of a new computer chip.Replacement caseMany Saab owners have only one key for their car and if they lose that the cost will be. The reason for this is that it's not cheap to add a new key, and this involves replacing the CIM (Column Integration Module) or TWICE on older models, and programming. In the event of theft, or any other disaster it is best to have an extra key. Don't purchase a used key even it's "new." Keys that are claimed to be new from a second-hand store will not work and are almost guaranteed to fail in the crucial moment.The dealer will charge the highest dollars if you only have one working key. We can, however, reset and reprogram the computer's EEPROM to prepare it to accept an alternative key without replacing the whole system. This could save you a lot of money. It's also much less expensive than waiting until you lose your one key.